A client is experiencing tachycardia and tremors. Lab values show elevated Free T4 and low thyroid stimulating hormone (TSH). Which diagnostic study will help the practitioner differentiate Graves' disease from other forms of hyperthyroidism?
Levothyroxine replacement test
Radioactive iodine uptake (RAIU) test
Adrenocorticotropic hormone (ACTH) stimulation test
Subtotal thyroidectomy
The Correct Answer is B
A. Levothyroxine replacement test: This test is used to assess the thyroid's response to synthetic thyroid hormone and is not used to differentiate types of hyperthyroidism.
B. Radioactive iodine uptake (RAIU) test: This test measures the thyroid gland's ability to absorb iodine, which helps differentiate Graves' disease (characterized by increased uptake) from other forms of hyperthyroidism, such as thyroiditis (which may show decreased uptake).
C. Adrenocorticotropic hormone (ACTH) stimulation test: This test is used to evaluate adrenal function and is not relevant for diagnosing or differentiating forms of hyperthyroidism.
D. Subtotal thyroidectomy: This is a surgical procedure rather than a diagnostic test and would not be used to differentiate between types of hyperthyroidism.
Nursing Test Bank
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Related Questions
Correct Answer is B
Explanation
A. Hyperthermia: This is not commonly associated with hypothyroidism. Hypothyroidism is more likely to lead to a decreased metabolic rate and hypothermia rather than hyperthermia.
B. Hyperlipidemia: This is a common condition associated with hypothyroidism. Hypothyroidism can lead to increased levels of cholesterol and triglycerides due to decreased metabolism.
C. Agitation: Hypothyroidism typically presents with symptoms such as fatigue and depression rather than agitation. Agitation is more commonly associated with hyperthyroidism.
D. Insomnia: Insomnia is more often associated with hyperthyroidism. Hypothyroidism usually leads to symptoms like fatigue and sleepiness rather than insomnia.
Correct Answer is B
Explanation
A. It is important that you taper off of the corticosteroids you are taking which have caused this disorder: This statement is not applicable because the client has a pituitary adenoma causing Cushing disease, not iatrogenic Cushing syndrome from corticosteroid use.
B. You will need to have your adrenal glands removed to reverse your symptoms: For Cushing disease caused by a pituitary adenoma, treatment typically involves surgical removal of the pituitary tumor, not the adrenal glands.
C. You will need to begin taking hydrocortisone, and increase your dose during times of stress: This is incorrect as hydrocortisone replacement is used for Addison's disease, not for managing Cushing disease.
D. You will receive glucose checks and sliding-scale insulin until your hormone levels are corrected: While glucose monitoring might be necessary due to hyperglycemia, the primary treatment for Cushing disease involves addressing the source of excess cortisol, which is the pituitary adenoma.
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